Software Engineer (Party Cell) - Fitness Content

Nex is on a mission to help families rediscover the joy of movement. Created by parents for parents, Nex combines technology and play to deliver fun, social, and interactive experiences powered by natural body motion, encouraging kids and adults to move more, play more, and have fun together. Nex Playground, the company’s award-winning active play system, is purpose-built to get families moving year-round, with safety and privacy as core considerations in its intentional design. It is certified kidSAFE+ COPPA compliant and built to support healthy, active play for all ages and abilities.

Nex Playground features a growing library of 50+ experiences, including motion and dance games, fitness and educational experiences, and Nex Originals. Content includes collaborations with partners like Hasbro, Sesame Workshop, and NBCUniversal. Nex has been recognized by Fast Company’s Most Innovative Companies, TIME’s Best Inventions, and Parents’ Best Entertainment System for Families, and has earned Red Dot, IDEA, and Core77 international design awards. We encourage you to explore Have Fun and Is Motion Gaming Back?, as they offer a deeper look into our culture, values, and explain how our approach to motion gaming differs from previous generations.

Location: San Jose, California (Hybrid)
Annual salary: USD 140,000 to USD 180,000
Type: Full-time
Reports to: Head of Studio (Party)

The Role

We're looking for a Software Engineer to help bring our product ideas to life within a fast-moving game cell focused on gamifying fitness and developing healthy habits for the whole family. You'll work closely with designers and engineers to prototype, iterate, and refine our product from concept to production.

This role is for someone who thrives in a rapid development environment, learns quickly, and brings in the right tools and technologies to build high-quality experiences. You should be excited about the challenge of making exercise engaging through game systems like progression, rewards, and live-ops while integrating with a motion-based platform.

You’ll be product and user minded, confident in sharing your perspective to shape the best possible experience for our growing community. If you love building polished, interactive experiences from the ground up, this role is for you.

What You'll Do

• Ramp up quickly on existing codebases and implement scalable content delivery to keep the catalog fresh.
• Develop progression systems, live-ops features, and other gameplay elements that enhance motivation and engagement.
• Optimize and polish user experiences to ensure smooth, production-quality gameplay.
• Evaluate and adopt new technologies to improve development speed and product quality.
• Work cross-functionally with designers, product teams, and other engineers to deliver a seamless experience.

What You Bring

• 3+ years of game development or interactive software engineering experience.
• Experience building user-facing products from scratch and shipping high-quality experiences.
• Strong programming skills, preferably with Unity (C#) or similar game engines.
• Ability to quickly learn and integrate new technologies into development pipelines.
• Experience optimising performance and artifact size for mobile (Android) platforms.
• A product-minded approach—you think about the user experience, not just the code.
• Strong problem-solving skills and ability to work independently in a fast-paced environment.
• Bonus: Experience with fitness apps, or at-home fitness solutions. Experience delivering remote content updates using Unity Asset bundles.

If you're passionate about blending gaming and fitness to build experiences t